Your comments

I completely agree. This would be a great feature to be added. Something like textmate where you can comment the whole block with command+/ would be nice.

Thank you for a great app.
Yes! This was exactly what I was talking about. Does Textastic have a similar support for Multimarkdown (or markdown), LaTex, and Fortran (this may not apply to many, but it is widely popular in scientific research field)?

If not, would they be considered to be incorporated in the future update? 

Thank you so much for your prompt reply and I have to tell you again that I love your app! It is very good, but it would make it just so perfect if there is a code completion feature for those languages I mentioned. 

Thank you again!

I have purchased the app today and also got the textexpander in the hope of gettting some siimlar results of the Textmate. What I was hoping to achieve was to get the snippet that has a fill-in functionality (that is the term they used in textexpander for Mac), But it doesn't seem like the textexpander touch has that feature. It would be just PERFECT if Textastic can incorporate the fill-in snippet feature of the textmate!

Thank you for a great app!